February 2012

Heavy metals accumulation and distribution pattern in different vegetable crops

  Different vegetable crops grown on heavy metal contaminated soil showed marked difference in metal accumulation, uptake and distribution pattern. Crop species also showed remarkable difference in metal concentration of various plant parts. Based on metal accumulation in edible parts and whole plants, root vegetables namely radish and carrot registered lower accumulation of almost all heavy metals except zinc...

Author(s): S. Singh, M. Zacharias, S. Kalpana and S. Mishra

February 2012

Removal of heavy metal ions in aqueous solutions using palm fruit fibre as adsorbent

  The ability of the biomass of palm fruit fiber in removing Pb, Cu, Ni and Cr from aqueous solution was investigated as a function of concentration, contact time and pH variations. Palm fruit fiber from the study locations were washed with deionized water, air-dried and ground using electric grinder. The powdered fiber was sieved and treated with 0.3 M HNO3 solution for 24 h, washed with deionized water...

Author(s): IDERIAH, T. J. K., DAVID, O. D. and OGBONNA, D. N.